About water and plateaus

I was exploring the arctic when I looted a shrine. A water curse fall over me, so I run to a plateau so the water couldn't reach me, thanks to my elevated position. To my surprise, the water destroyed the plateau.

So, my suggestion is to make the plateaus, hills, mountains, glaciers and volcanos indestructible by the action of water. This would make the game more strategic. What do you think?